|#|Employer|# of Employees|
|---|---|---|
|1|Medline|1,200|
|2|Mundelein Park District|422|
|3|Amcor|350|
|4|Fremont School District 79|287|
|5|University of Saint Mary of the Lake|220|
|6|Mundelein Elementary School District 75|213|
|7|Mundelein High School|211|
|8|Village of Mundelein|183|

Question: how many employers have at least 300 employees?
Answer: 3